III) Title: The Water Cycle Summary: The students should have some background on the water cycle from their middle school level classes. This lesson will build on that previous learned material of the water cycle and include new terms like sublimation, transpiration, percolation and infiltration. It will also include information about the structure of water. The background knowledge the students should have about the water cycle include evaporation, condensation, and precipitation. To review the water cycle and introduce some terms they may or may not have learned. I’m going to have the students create a miniature version of a water cycle. First, in their notes and again during the next day’s lesson through an experiment.
Objectives:
Students will understand the terms associated with the water cycle (sublimation, percolation, transpiration, infiltration, condensation, evaporation, subsurface runoff, surface runoff and precipitation)
Students will be able to identify the different stages of the water cycle.
Students will be able to explain the different stages in the water cycle and how water flows through the cycle.
Materials:
Note books
Colored pencils
Pens or pencils
Instruction: Opening:
To begin the lesson and access the background knowledge that the students have about the water cycle, I will show them a picture of a rain storm and will ask the students a probing question, which will be “ where do you think rain comes from?”
As a class we will discuss the student’s answers. I will aid in making connections between their answers and the water cycle.I will identify misconceptions and explain what makes them a misconception
Timing: 10-15 minutes
Middle:
I will ask the students what they think the terms evaporation, condensation, precipitation and surface runoff mean.
If students are unclear of any of these terms I will use common examples of each term to make connections to the terms to activate prior knowledge. Some of the common examples. I could use would be a pot of water boiling (evaporation), the moisture in the air collecting on the outside of a cold soda can on a hot day (condensation) the rain falling from the sky and and streaming down a paved street (precipitation and surface runoff)
I will review these terms verbally with examples and again visually on a PowerPoint which will have everything I'll be explaining written down.
I will define and explain the words sublimation, transpiration, infiltration and percolation. These are terms the students may not have encountered before. I will provide the definitions and have the students write them down in their notes.
For each new term I will provide an example. For sublimation I will use the example of pouring warm soda into a glass of ice or use the example of dry ice sublimating. For infiltration I will use the example of pouring water on a potted plant and I may show the students this process with a small mini demonstration and could use the same example to explain subsurface runoff.
Projected on the screen I will have drawn a water cycle without the arrows and terms.
I will have the students describe where the terms, they have reviewed and learned, should go on the cycle. I will also ask them to depict where the arrows would point from each term.
I will use questioning to guide their answers.
After I will have the students draw the water cycle in their note books.
Timing: 30 minutes
Closing:
I will describe to the students the model they are going to create in class the next class time.I will ask the students for homework to review the water cycle notes and model they created in their notes and brainstorm the possible materials that they are going to need to construct a mini water cycle.
Title: The Water Cycle
Summary: The students should have some background on the water cycle from their middle school level classes. This lesson will build on that previous learned material of the water cycle and include new terms like sublimation, transpiration, percolation and infiltration. It will also include information about the structure of water. The background knowledge the students should have about the water cycle include evaporation, condensation, and precipitation. To review the water cycle and introduce some terms they may or may not have learned. I’m going to have the students create a miniature version of a water cycle. First, in their notes and again during the next day’s lesson through an experiment.
Objectives:
Materials:
Instruction:
Opening:
Middle:
Closing:
Notes:
- The picture is from, http://www.heyitsourwebsite.com/rainstorm%20ireland%20aran%20islands%20jan09.jpg
accommodation: